Headlight for vehicles



@cih 3G) 11923. EAWZAMH M. A. FORD HEADLIGHT FOR VEHICLES Filed Aug. 27. 1921 Patented Get. 3%, 1923..

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entree stares MATTHEW A. FORD, OF DAVENPORT, IOWA.

HEADLIGHT FOB VEHICLES.

Application filed. August 27, 1921. Serial No. 496,006.

To all whom it may concern Be it known that I, llfa'rrrrnw A. Form, a citizen of the United States, residing at Davenport, in the county of Scott and of Iowa, have invented certain new and useful Improvements in Headlights for Vehicles, ofwhich the following is a specification.

This invention relates to headlights particularly adapted for motor vehicles, and has for its' principal object the provision of novel means for so directing the light rays as to eliminate the glare which is objectionable to persons approaching, and to give increased illumination of the road bed in front of the vehicle.

This general object is attained by the provision of a flat reflector arranged in a novel position in a parabolic reflector lamp for reflecting the rays emanating downwardly from the lamp, upwardly to the upper parabolic reflector which directs the rays downwardly and forwardly to the roadway. This gives full illumination of the road bed for driving and there are no intense rays directed upwardly within the range .of an approaching driver.

1 have also aimed to provide a reflector of the character described adapted to be applied as an attachment to the ordinary parabolic reflector lamp.

Other objects and attendant advantages will be appreciated by those familiar with -this art as the invention becomes better understood by reference to the following description when considered in connection with the accompanying drawings, in which-- Figure 1 is a vertical section through a headlight embodying my invention;

Fig. 2 is a front elevation of the headlight; and

Figs. 3 and 4 are vertical sections through modified forms of the invention.

In Figs. 1 and 2, I have shown a complete lamp. the casing or body of which might be of any suitable or preferred design. In the present example, the casing 5 follows in general the shape of the reflector whichit incloses. The reflector 6 may be of the conventional parabolic design, except for the lower portion there is substituted a flat reflector 7 parallel with the focal axis of the parabolic reflector. The reflector 7 reaches from side to side of the parabolic reflector in the plane shown in Fig. 1, and is nickeled or silver-ed as the case may be, to provide a reflector surface similar to that of the parabolic reflector. Suitable lamp connections State\ and a lamp 8 are provided, the lamp 8 being positioned in front of the focal center of the parabolic reflector. The reflector 67 has a peripheral flange 9 held in position on the lamp casing by the removable rim 11 between which rim and the flange is interposed the glass 12.

By reason of this construction the full effect of the rays thrown from the lamp onto the upper surface of the parabolic reflector is obtained for illuminating the road bed. This illuminating effect is not a source of danger to the operators of approaching vehicles, because the intense rays are directed downwardly onto the road bed.

The intense rays which are a source of danger are. the ones directed downwardly from the-lamp and reflected upwardly by the lower parabolic reflector. By the present invention, these intense downwardly directed rays are intercepted by the flat re flector 7 and directed upwardly to the parabolic reflector surfaces and thence reflected onto the road bed. It follows, therefore, that those intense rays which with the ordinary parabolic reflector lamp are a source of danger, will be by the present construction, utilized to the fullest advantage. While some of the light rays from the lamp which strike the foremost portion of the reflector? will be reflected upwardly, it will be noted that the angle of reflection will carry the rays above or short of the approaching driver; consequently these rays are not a source of danger and are unnoticed by those approaching.

In Fig. 3, I have shown my invention as applied to a conventional parabolic reflector lamp. In this case a supplemental reflector 13 similar to the reflector 6-7, is.

lit is believed that the foregoing conveys a clear understanding of the objects prefaced above, and it should be understood that various changes might be made in details of construction Without departing from the spirit and scope of the invention as expressed in the appended claim:

I claim:

' The combination with a headlight having a parabolic reflector, a lamp and a connection therefor, of a supplemental reflector shaped to fit wlthin the headlight reflector and having an opening registering with and adaptedto receive the lamp connection,

whereby said lamp may be positioned in front of the supplemental reflector and supported on its headlight connection, and said supplemental reflector having an upper parabolic reflector face complemental to the upper parabolic face of the headlight reflector and having a lower flat reflector face substantiallyparallel with the focal axis of the supplemental parabolic reflector surface and reaching uninterruptedly from side to side and from front to back thereof.

MATTHEW A. FORD. 

